Material: 1.4541

Information about the selected material

Assignment to new and old standards:

Standard Description
EN 10088-3 1.4541 X6CrNiTi 18-10
Aircraft WL 1.4544
AISI 321
BS 321 S31 / 321 S51
JIS 321
DIN 17440 1.4541
SIS 2337

General properties:

Property Rating
corrosion resistance good
Mechanical properties middle
Malleability middle
Weldability excellent
Machinability bad

Mechanical properties:

Property Standard Value
Yield strength (N/mm²) Rp0,2 = 190
Tensile strength (N/mm²) Rm 500-700
Impact strength (J) at 25°C ISO-V = 100
Hardness HB = 215

Physical Properties:

Property Value
Density (kg/dm³) =7,9
Electrical resistance at 20°C (O mm²/m) 0,73
Magnetisability low
Thermal conductivity at 20°C (W/m K) 15
Specific conductivity at 20°C (J/kg K)) 500

Special features

  • amagnetic quality (µ = 1,3)
  • usable up to 850°C

Main usage

  • Automotive industry
  • Chemical industry
  • Building industry
  • Mechanical engineering
  • Food industry
  • Aircraft

Corrosion resistance

1.4541 has in most natural waters (rural and industrial) on an excellent corrosion resistance , provided that chlorine and salt concentrations and the concentration of nitric or organic acids is low. Quality is resistant to corrosion after welding.


  • weldable using all welding methods both with and without filler metal
  • Oxides and discoloration caused by welding or high temperature treatment must be absolutely removed mechanically or chemically